Recognised as Colour

#FFE66F

#FFE66F
Yellow
Light
Nearest: Khaki

#FFE66F is a yellow with RGB values 255, 230, 111 and HSL 50°, 100%, 72%. It is a light colour, so black text on it reaches 16.8:1 contrast (AAA for normal text). The nearest named colour is Khaki.

Colour values

#FFE66F#FFE66F

HEX#FFE66F

RGBrgb(255, 230, 111)

RGB (0–1)1, 0.902, 0.4353

RGB percentages100%, 90.2%, 43.5%

HSLhsl(49.6, 100%, 71.8%)

HSV / HSBhsv(49.6, 56.5%, 100%)

CMYK0%, 9.8%, 56.5%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,770,671

CSS custom property--colour: #FFE66F;

Brightness & contrast

Relative luminance0.79001WCAG 2.x, 0 is black and 1 is white

Perceived brightness227.8 of 255ITU-R BT.601 weighting

Light or darkLight

Best text colour on this backgroundBlackcontrast 16.8:1

Contrast with white1.25:1WCAG normal text: Fail

Contrast with black16.8:1WCAG normal text: AAA

Greyscale equivalent#E3E3E3

Inverted#001990

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#FAE163no red cones; affects about 1% of men; ΔE 3.7 from the original

Deuteranopia#FFEA74no green cones; the most common form, about 1% of men; ΔE 2.2 from the original

Tritanopia#FFD7CBno blue cones; rare, and affects men and women equally; ΔE 52.1 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text1.25:1WCAG large text: Fail

Contrast with black, large text16.8:1WCAG large text: AAA

Named colours

Khaki · ΔE 15.5 Goldenrod · ΔE 26.3 Dark khaki · ΔE 27.6 Gold · ΔE 27.6 Pale goldenrod · ΔE 29.1 Navajo white · ΔE 33.4

Nearest named CSS colourKhaki (#F0E68C)ΔE 15.5, a distinctly different colour

Hue familyyellow

CSS keyword usableNo exact keyword

Colour harmonies

base +30°+90°+120°+180°+210°+240°+270°+330°

Complementary#6F88FF

Analogous#FF9E6F, #D0FF6F

Triadic#6FFFE6, #E66FFF

Split complementary#6FD0FF, #9E6FFF

Tetradic#6FFF9E, #6F88FF, #FF6FD0

Tints, shades & saturation

+40%+30%+20%+10%base -10%-20%-30%-40%

Lighter +40%#FFFFFF

Lighter +30%#FFFFFF

Lighter +20%#FFF8D5

Lighter +10%#FFEFA2

Darker −10%#FFDD3C

Darker −20%#FFD409

Darker −30%#D5B000

Darker −40%#A28600

More saturated +25%#FFE66F

Less saturated −25%#EDDA81

Channel breakdown

R255

G230

B111

Red255 (100%)

Green230 (90.2%)

Blue111 (43.5%)

Hue49.58°

Saturation (HSL)100%

Lightness71.76%

Dominant channelRed

Hex per channelR FF · G E6 · B 6F

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Harmonies

Lighter and darker

Similar named colours

Also reads as

FFe66F (chemical formula)

Formula
3,723.766 g/mol
68 atoms

FFe66F has a molar mass of 3,723.766 g/mol, made up of 68 atoms across 2 elements: 2 × F, 66 × Fe.

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Molar mass

Molar mass3,723.766 g/mol

Total atoms per molecule68

Distinct elements2

Mass of one molecule6.1834589 × 10^-21 g

Molecules per gram1.6172178 × 10^20

Name

NameNot in the name tablea name cannot be worked out from a formula alone: isomers share formulas, and naming depends on bonding the formula does not show

Composition by mass

F1%

Fe99%

Fluorine (F × 2)37.996 g/mol, 1.02%

Iron (Fe × 66)3,685.77 g/mol, 98.98%

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Elements in this formula

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